Texas Instruments ADS1130 Handleiding

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DSADC

REFPREFNCAPDVDD

DGND

AINP

AINN

SCLK

SPEED

DRDY/DOUT

PDWN

AVDD

CAP

Internal

Oscillator

Gain=64

AGND

ADS1130

ADS1130

www.ti.com

SBAS458A–JUNE2009–REVISEDSEPTEMBER2012

18-BitAnalog-to-DigitalConverter

ForBridgeSensors

CheckforSamples:ADS1130

1

FEATURES

DESCRIPTION

TheADS1130isaprecision,18-bitanalog-to-digital

2

•18-BitNoise-FreeResolution

converter(ADC).Withanonboardlow-noisegain

•CompleteFront-EndforBridgeSensor

amplifier,onboardoscillator,andprecision18-bit

•OnboardGainof64

delta-sigmaADC,theADS1130providesacomplete

front-endsolutionforbridgesensorapplications

•OnboardOscillator

includingweighscalesandstraingauges.

•Selectable10SPSor80SPSDataRates

Thelow-noiseamplifierhasagainof64,supportinga

•Simultaneous50Hzand60HzRejectionat

full-scaledifferentialinputof±39mV.Thedelta-sigma

10SPS

ADChas18-biteffectiveresolutionandiscomprised

•ExternalVoltageReferenceupto5Vfor

ofathird-ordermodulatorandfourth-orderdigital

RatiometricMeasurements

filter.Twodataratesaresupported:10SPS(withboth

50Hzand60Hzrejection)and80SPS.TheADS1130

•Simple,Pin-DrivenControl

canbeputintoalow-powerstandbymodeorshutoff

•Two-WireSerialDigitalInterface

completelyinpower-downmode.

•TinyTSSOP-16Package

AllofthefeaturesoftheADS1130arecontrolledby

•SupplyRange:2.7Vto5.3V

dedicatedpins;therearenodigitalregistersto

program.Dataareoutputoveraneasily-isolated

APPLICATIONS

serialinterfacethatconnectsdirectlytotheMSP430

andothermicrocontrollers.

•WeighScales

•StrainGauges

TheADS1130isavailableinaTSSOP-16package

andisspecifiedforoperationfrom–40°Cto+85°C.

1

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof

TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

2Alltrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2009–2012,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Product specificaties